Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
10004excellentexcellent11excellent
09004excellentexcellent11excellent
08004excellentexcellent11excellent
07004excellentexcellent11excellent
06004excellentexcellent11excellent
05004excellentexcellent11excellent
04004excellentexcellent21excellent
03004excellentexcellent31excellent
02004excellentexcellent31excellent
01004excellentexcellent21excellent
00004excellentexcellent21excellent
23004excellentexcellent11excellent
22004excellentexcellent11excellent
21004excellentexcellent11excellent
20004excellentexcellent11excellent
19004excellentexcellent11excellent
18004excellentexcellent11excellent
17005excellentexcellent11excellent
160012excellentexcellent11excellent
150018goodexcellent11excellent
140017goodexcellent11excellent
130022goodexcellent11excellent
12007excellentexcellent11excellent
11007excellentexcellent11excellent